12 V 30 amp supply from L6060 to sander?

Gaspasser

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Hello gang. Yes, it's snowing and yes, I waited until the last moment to get ready for clearing it. At least I have the plow hooked up to the truck. Just got a Fisher Quick-Caster 300 for the tractor (rear standard h 2x2 hitch receiver on the 3 pt). Comes with a standard 7 blade female end on sander side. Ordered a 7 blade male connector from E-trailer for the tractor side. I have to rig up a 2 wire power supply cable from tractor to adapter. So, Fisher tells me it draws 30 amps (x 12 volts = 360 watts). What's the best place to pull the power cable from in my L6060 cab /c heavy duty alternator? I'm on the hill today and don't have access to my manual (which is sitting warm and dry in my filing cabinet at home).

I suppose the best answer would be to pull directly from the battery (with appropriate fuses at the terminals) but there is a 2 conductor L connector plug hanging out inside the cab coming from under the right side trim near the 3 pt hitch tilt/lift levers. Using this would reduce cable length and chances for a short. Wondering if anyone knows what the amp-pacity of this is? Also, I suppose I could pull from the 12V cig lighter plug but again, unsure of amp rating.

As always, thanks in advance. Thinking I'd like to work part time at a tractor dealer to learn this stuff when I retire.
 

Mark_BX25D

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30 amps? I'd pull it directly from the battery and add a relay to control it. Check your length to ensure you use a large enough wire.

Cig lighter plugs are usually 10 amps. I have seen a few 20s. I would not attempt 30.
 
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William1

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I'd..... Short red wire (6 AWG) to a 35 amp fuse to (more 6 AWG wire) Andersen power pole connector rated at 50 Amps or higher. I use welders cable due to more strands and great flexibility, silicone jacket for longevity.
 
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North Idaho Wolfman

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If your going to run this for any length of time, you're going to want to do an alternator upgrade.
 
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Gaspasser

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If your going to run this for any length of time, you're going to want to do an alternator upgrade.
I've got the "heavy duty alternator" upgrade. Will make 2 runs down 800 foot driveway. Perhaps 40 minutes to do all of it.

Sander comes with 7 pin trailer plug (see image) which hooks into truck side standard connector. But the cable is only 18 inches long. My challenge is to find a 7 pin "male" bladed adapter to mate with the sander connector and a 8 foot cable which I'll wire to battery. I tried Etrailer but the part they sent didn't mate.
I could also run a cable into the sander box and bypass the 7 pin connector altogether. Always a challenge getting these projects going. Appreciate the help as always.
 

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Gaspasser

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This should be the right one:

This should be the right one:

Thanks Wolfman. Right. Comes with bracket for mounting to vehicle side. I was looking for more like an extension cord style connector without the box/bracket but finding out that doesn't exist (spoke and searched with Etrailer, Curt Mfg, Hopkins Towing solutions). Guess I'll have to mount this vehicle side connector to the sander and keep a length of cable on the sander that I can run to a a standard 12v 2 conductor connector at the rear of the tractor. I only need hot and ground. The sander has wireless controller. Thanks. Always an adventure.
 

Dustball

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Thanks Wolfman. Right. Comes with bracket for mounting to vehicle side. I was looking for more like an extension cord style connector without the box/bracket but finding out that doesn't exist (spoke and searched with Etrailer, Curt Mfg, Hopkins Towing solutions). Guess I'll have to mount this vehicle side connector to the sander and keep a length of cable on the sander that I can run to a a standard 12v 2 conductor connector at the rear of the tractor. I only need hot and ground. The sander has wireless controller. Thanks. Always an adventure.
This one has a 9-14mm cord grip which should allow you to use a 10-12 AWG cord as your extension to the battery.

Grind/cut off the flange and lid if you want to make it lower profile.
 
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chim

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Gaspasser

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Gaspasser

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I'd..... Short red wire (6 AWG) to a 35 amp fuse to (more 6 AWG wire) Andersen power pole connector rated at 50 Amps or higher. I use welders cable due to more strands and great flexibility, silicone jacket for longevity.
Thank you!
 

Mark_BX25D

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I'd..... Short red wire (6 AWG) to a 35 amp fuse to (more 6 AWG wire)
Wire gauge should be determined by the circuit'. That means the current required AND the distance traveled from the source to the load.

There are plenty of calculators online.

Wire gauge should not just be pulled out of your nether regions.
 
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chim

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The information given was to wire for 30A. The factory information for the "300" shows a 25A breaker. There's information that the spreader can be powered through a standard 7-pin trailer plug (the largest I could find had a #10 AWG wire). My suggestion of #8 in Post #10 is, IMHO, overkill whether it is considered anus extractus or not and will work just fine. The Saltdogg spreader we had at work with a 1/2HP 12VDC motor ran on #10AWG.
 

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jaxs

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We don't get much experience with snow plows in Texas but we have abundance of dump, tilt and liftgate trailers that pull high amps. From the standpoint of cost, maintenance and reliability, a dedicated battery wins. The idea arrangement has battery receiving charge through 7 pin with dpdt relay disconnecting charge wire while high amp draw is occurring. Trailers rarely come equipped with relay to take charge wire out of circuit so blown fuse and burnt connections happen when battery drops far below full charge. It's a pita to unplug before dump, re-plug after dump then repeat every trip. Bigger pain when forget to re-plug and see flashing blue in rear view due to no tail,turn & stop lights.
 
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Hugo Habicht

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Wire gauge should be determined by the circuit'. That means the current required AND the distance traveled from the source to the load.
100%.

I would like to add that the fuse or circuit breaker rating is entirely determined by the current carrying capacity of the cable and nothing else. This prevents excessive heat up and fire in case of a short.
 
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Gaspasser

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Yep, sander dealer said sander plugs right in to vehicle side 7 pin connector, typically 10 g. Manufacturer (Fisher) tech support say draws 30 amps. Your tech data says 25 amp fuse. So bigger is better for less voltage drop. Much depends on length of wire to sander, which I have not figured out yet. I just put propane genny and lights in small 14x25 barn/shed with a portable heater and CO detector. Shed is packed with gear and mini-ex but I can just about squeeze tractor in to work on the power cable, hopefully this weekend. My lot has no utility power so weather limits when I can do it without freezing my azz off. Hoping to get a "real" outbuilding erected in 2026 so I can get serious work done and have adequate cover for equipment. Spent most of this past year stumping, clearing, burning with lots more to go yet. So a bit behind the eight ball getting sander project finished as well as mounting the front snowblower and chains on the L6060. I did at least get the plow on the truck. Appreciate all the advice and references from folks on the forum. Always learn something here.
 
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